PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/06-20:12:30
G10     251.0          28.7               11.7 +/-    1.73      21.1 +/-    1.73  0.120 / 0.410
G13     52.5           28.4                8.3 +/-    2.48      15.1 +/-    2.48  0.120 / 0.400
G15     87.1           58.1                9.2 +/-    0.57      10.7 +/-    0.57  0.040 / 0.050
G16     295.0          15.8                8.1 +/-    2.29      19.9 +/-    2.29  0.040 / 0.060
G20     271.5          51.8               10.5 +/-    2.66      13.0 +/-    2.66  0.060 / 0.160
G21     333.8          59.7               10.1 +/-    0.77      11.5 +/-    0.77  0.070 / 0.180
G26     267.7          15.3                9.4 +/-    2.22      23.2 +/-    2.22  0.030 / 0.050
G29     163.7          50.1               10.7 +/-    0.48      13.5 +/-    0.48  0.030 / 0.040